Module 318 min read · AI in Law

Legal Research with AI

⚖ Important — Please Read

This course teaches AI literacy for legal work. It is not legal advice, it is not a substitute for a law degree or a licensed attorney, and completing it does not qualify you to practice law or give legal advice to anyone. Nothing here should be relied upon as legal guidance for any actual matter.

If you face a real legal issue, consult a qualified, licensed attorney in your jurisdiction. The techniques taught here are for understanding how AI tools intersect with legal work — always subject to professional rules of conduct, your jurisdiction's requirements, and the supervision of a licensed professional.

Legal research — finding the statutes, cases, and regulations that govern a question — is foundational legal work and a natural target for AI acceleration. But it's also ground zero for the fabrication danger from Module 2. This module shows how to use AI to make research faster and smarter while keeping authoritative sourcing and verification exactly where they must be: in real legal databases, confirmed by a human.

The fundamental distinction: general AI vs legal research platforms

This is the single most important thing to understand about AI legal research. General-purpose AI tools (Claude, ChatGPT, Gemini, Perplexity) are not connected to comprehensive, authoritative legal databases. They do not reliably know real case law. When they produce citations, those citations may be fabricated.

Dedicated legal research platforms — Westlaw, Lexis, and their AI-enhanced versions — are built on actual, comprehensive case and statute databases. Increasingly they incorporate AI features, but grounded in real legal content with citations that resolve to real authority. For actual legal research that will be relied upon, these are essential.

The division that keeps research safe

Use general AI for understanding, framing, and analysis — explaining an area of law, helping structure a research plan, analyzing documents you provide. Use authoritative legal databases for the actual authority — the real cases, statutes, and citations. Never treat a general AI as a source of law. It's a thinking aid, not a legal database.

Where general AI genuinely helps research

Orienting in an unfamiliar area
"Explain the general framework of [area of law] and the key concepts I should understand." AI gives you a fast conceptual orientation — which you then ground in real authority. Treat it as a starting map, not the territory.
Building a research plan
"I'm researching whether [situation] gives rise to [claim]. What legal issues should I research, what elements would I need to establish, and what questions should I be asking?" AI is excellent at structuring the research itself.
Generating search strategies
"What search terms and concepts should I use to research this issue in a legal database?" AI helps you query the real databases more effectively — a force-multiplier on the authoritative tools.
Analyzing authority you provide
Once you've pulled real cases from a real database, AI can help you analyze them: "Here are three cases I found. How do they relate? Where do they conflict? What's the through-line?" Now the AI is working from verified material.

Using Perplexity for current legal developments

For tracking recent legal news, new legislation, or current developments, Perplexity's live search with citations is useful — with the usual discipline. It can surface that something happened and point you to sources. But the underlying authority still must be confirmed in primary sources, and Perplexity is not a substitute for a real legal database when you need the actual law.

The seductive failure mode

The most dangerous research pattern: asking a general AI "what cases support [my position]?" and getting back a beautifully organized list of authorities. It feels like research gold. It may be entirely fabricated. The more perfectly the cases support your argument, the more suspicious you should be — real law is rarely that convenient. Every one of those citations must be verified before it means anything.

A safe AI-assisted research workflow

Step 1 — Frame with general AI
Use AI to understand the area, identify the issues, and build a research plan. No citations relied upon yet — just orientation and structure.
Step 2 — Research in authoritative databases
Use Westlaw, Lexis, or equivalent to find the actual authority. This is where real law comes from. The AI-generated search strategy makes you faster here.
Step 3 — Analyze real authority with AI
Bring the verified cases and statutes to AI for help synthesizing, comparing, and structuring. Now AI works from confirmed material, not its imagination.
Step 4 — Verify everything before reliance
Confirm every authority is real, current, on-point, and accurately characterized. Citator check for good law. Only then does it enter your work product.
The research principle

AI makes you a faster, better-organized researcher — it does not and cannot replace authoritative sourcing. The lawyer who uses AI to frame and structure research, pulls real authority from real databases, uses AI to analyze it, and verifies everything before relying on it is doing it right. The one who asks an AI for cases and files them is one search away from sanctions.

Next

Module 4 moves to one of AI's most genuinely valuable and lower-risk legal applications: contract review and analysis, where you work from a document you already have rather than relying on AI for external authority.